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(No Model.) 2 Sheets-Sheet 1.

S. J. PARKER.

REGULATOR FOR FEED WATER. No. 356,373. Patented Jan. 18, 1887.

(No Model.)

S. J.. PARKER. REGULATOR FOR FEED WATER.

Patented Jan; 18, 1887.]

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Elmira STATES PATENT Fries.

SAMUEL J. PARKER, OF ROCHESTER, N. Y., ASSIGNOR TO ELIZA J. PARKER,JENNIE L. ROSS, AND LAURIE A. MORGAN, ALL OF SAME PLACE.

REGULATOR FOR FEED-WATER.

SPECIFICATION forming part of Letters Patent No. 356,373, dated January18, 1887. Application filed May 1, 1886. Serial No. 200,855. (No model.)

To aZZ whom it may concern:

Be it known that I, SAMUEL J. PARKER, of the city of Rochester, in thecounty of Monroe and State of New York, have invented certain new anduseful Improvements in Regulators for the Feed-Waterto Steam-Boilers;and I do hereby declare that the following is a clear and eXactdescription ofthe invention, which will enable others skilled in the artto which it,,pertains I0 to make and use the same, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification, in which- Figure 1represents a side elevation. Fig. 2 represents a plan or top view asattached to the boiler. Fig. 3 represents asectional view of elbow E.

The object of my invention is to provide a new mechanical arrangement bywhich the 2o flow of feed-water may be uniformly regulated attached thepiston f, which forms a continu-- ation to the expansion-pipe G O.

The valve e is surrounded by its casing B, which is connected at c withelbow E at d by the adjustable rod D D. To the valve-casing B areconnected pipes H and I. Pipe His connected with steam-space of boiler.Pipe I leads to steam-pump, the valve-stem e passing through its casingto meet piston f. The op- 4 posite end of the valve-stem is providedwith a slot in which a screw-driver may be inserted to grind thevalve-seat s. The threaded cap I), forming part of the valve-casing, andsquared at the outer end, so as to receive a wrench,

can be readily removed to insert the valve.

After attaching the regulator to the boiler I allow the boiler to fillwith water sufficiently to fill the expansion-pipe G O with water, thenthe rod D D, which is provided with a righthand screw at one end and aleft-hand screw at the other end, I adjust so that the piston f willallow the valve 6 to rest on its seat 8 s. The valve will then be keptclosed by the pressure of the steam from the boiler through pipe H, asshown by arrows. WVhen the water lowers in the boiler sufficiently toallow steam to enter the expansionpipe 0, the steam being considerablyhotter than the Water, the pipe 0 is caused to expand, forcing thepiston f, which works through the stuffing-box L, to push against thestem of the valve e and causing the valve to open, as shown by thedotted lines, allowing the steam to pass through the valve from pipe Hand into pipe I to steam-pump, which, when receiving the steam, startsto pump water into the boiler.

\Vhen the pump has supplied sufficient water to the boiler to again fillthe expansionpipe O O, the water in expansion-pipe 0, being of lowertemperature than the steam, causes the pipe 0 to contract and withdrawthe piston f from the stem of the valve 6. The valve is then closedagainst its seat 8 s by the pressure of the steam from boiler throughpipe H, thus cutting off the supply of steam to the pump, andconsequently the supply of water to the boiler, the valve automaticallyopening and closing as the waterin the boiler rises and falls, causingthe expansion-pipe G O to expand and contract, the valve-casing B beingheld by the 8: rod D D rigidly to elbow E. Where two or more boilers aresupplied with water by one pump, I attach two regulators to each boiler,one supplying steam to pump as heretofore specified the feed-water frompump passing through the other regulator to the boiler, by attachingpipe H, Fig. 1, to feedwater pipe from pump, and pipe I to boiler. Eachboiler supplies steam to pump, through the regulator, when boilerrequires water the larger regulator through which the water passes toboiler, through pipe I, openingsimultaneously with steam-regulator andreceiving its portion of water.

If one or more of the boilers fill with water 5 before the others,itstwo regulators are closed,

as before described, and steam is supplied to the pump by the remainingboilers, which also receive the water. When the regulators on all of theboilers are elosed,the supply of steam too to pump will be entirely cutoff, and likewise u the pipe II, Fig. 1, into the suction'pipe to thepump, instead of into the steam of boiler, as is the case where asteam-pump is used and the pipe I connected to the pump, then pro ceedas before. \Vhen the water in the boiler lowers, steam enters theexpansion pipe through pipe G, pipe C expands, forcing the valve open,as before. The pump can then draw the water through the suction-pipe Hand through the valve 6 and pipe I into the pump, which forces it intothe boiler through the ordinary pipe so provided. 'When the water risesin the boiler suflicient to fill the expansionpipe (J G with water, thepipe 0 contracts and withdraws the piston ffrom stem of valve 0. Thesuction of the pump then closes the valve 0 against its seats 3, whichcuts off the supply of water to the pump until the valve 0 is forcedopen again by the water lowering in the boiler and the steam-expandingpipe C.

I find it desirable to elevate the end of expansion-pipe C at elbow K atrifle above the I claim as my invention-- 1. In combination with aboiler and a water-supply pump, a feed-water regulator consisting of anexpansible pipe connected with the water-space of the boiler at ornearits lowwater line and communicating with a return pipe leading tothe steam-space, and a fixed pipe communicating with the pump andprovided with a valve, said valve being moved positively in onedirection upon an increase of temperature in the expansible pipe, and inthe other direction by the pressure of a fluid in the fixed pipe.

2. The combinatiomwith a boiler, a pump, and a steam-pipe communicatingwith the pump, of a valve within the steam-pipe, and an expansibledevice in contact with the valve and communicating with the interior ofthe boiler at its low-water line, whereby the valve may be raised fromits seat by the expansible device and positively seated by the flow ofsteam in the steam-pipe upon the contraction of the expansible device.

3. The combination, substantially as described, of two or more boilers,a water-supply pump, and two regulators, substantially such asdescribed, interposed between each boiler and the pump.

4:. In a feed-water regulator, a pipe-elbow and valve-casing adjustablysecured at a distance apart by a non-expansive coupling, an expansiblepipe connected to the elbow, and the valve having its stem arranged inthe path or line of movement of the expansible pipe.

5. In an automatic feed-water regulator for steam-boilers, the expansionand contraction pipe 0 C, situated on or near the waterline of boiler,in combination with the threaded rod 1) D, the valvecasing, and thevalve, substantially as shown.

6. The expansion and contraction pipe CO, adjustable threaded rod D D,water-pipe F, steam pipe G, piston f, and valve c, all in combination,substantially as shown and described.

SAMUEL .I. PARKER.

XVitnesses:

H. W. llIORGAN, ALEX. Ross.

